i'm working on a lan with students, teachers, some guests and a pair of
administrators.
i need that everyone can authenticate himself on the lan. there are some
computers in a room and i want they will be powered on will appear a
display to log in. the same thing for every computer that will be
connect to our local network. every user will have his permissions to
visit different sites, to see server resources, etc. i don't know how
prepare this but for the moment am preparing the server populating it
with every user.